feat: Automatic URL generation for applications

[rafaelrsantosti]

Description

Implement automatic URL generation for application components to prevent conflicts and improve user experience.

Current Behavior

• Users manually enter the URL for each component
• URL uniqueness is only validated at database level
• Confusing error when URL conflicts occur
• No standard URL pattern

Proposed Solution

Automatic URL Generation

Generate URLs automatically based on:

• Application name
• Component name
• Environment name
• Organization slug (when #issue_number is implemented)

URL Patterns

Pattern 1: Simple (current)

{component}-{app}-{env}.{domain}
Example: web-myapp-production.example.com

Pattern 2: With Organization

{component}-{app}.{org}.{domain}
Example: web-myapp.acme-corp.example.com

Pattern 3: Environment as subdomain

{component}-{app}.{env}.{domain}
Example: web-myapp.staging.example.com

Features

1. Auto-generation on creation

   • URL generated automatically if not provided
   • Based on configurable pattern (system setting)

2. Custom URL override

   • Users can still specify custom URLs
   • Validation ensures uniqueness
   • Clear error messages on conflicts

3. URL Preview

   • Show generated URL before creation
   • Allow editing before confirming

4. Domain configuration

   • Configurable base domain per environment
   • Support for wildcard DNS

API Changes

# Settings for URL generation
URL_PATTERN = "{component}-{app}-{env}.{domain}"
DEFAULT_DOMAIN = "apps.example.com"

# Auto-generate if URL not provided
if not component.url:
    component.url = generate_url(
        component=component.name,
        app=application.name,
        env=environment.name,
        org=organization.slug,  # if available
        domain=settings.default_domain
    )

Portal Changes

• Add URL preview in component creation form
• Show "Auto-generated" badge when URL is automatic
• Add "Regenerate URL" button
• Improve error message for URL conflicts

Benefits

• Eliminates URL conflicts by design
• Consistent URL naming across platform
• Better user experience (less manual input)
• Predictable URLs for automation/scripts
• Easier DNS management with wildcard domains